– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sun 23 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sun 23 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 23 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummarySome drizzle, heaviest during Sun afternoon. Warm (max 29°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light. | Days 5–7 Weather SummarySome drizzle, heaviest during Thu morning. Warm (max 24°C on Wed afternoon, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | | | | |  | | | |  | | | |
rain shwrs | rain shwrs | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | rain shwrs | rain shwrs | clear | some clouds | rain shwrs | some clouds | |
Cloud base (m) | 700 | 9150 | 9400 | 9400 | 8500 | 9650 | 4550 | 6650 | 600 | 2000 | 950 | 1700 | |||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1.2 | 0.2 | — | — | — | — | — | — | — | — | — | 1.2 | 0.3 | — | — | 0.1 | — |
max °C | 16 | 15 | 21 | 25 | 21 | 27 | 29 | 22 | 22 | 24 | 18 | 14 | 18 | 15 | 16 | 18 | 14 |
min °C | 15 | 13 | 16 | 25 | 21 | 23 | 27 | 18 | 19 | 23 | 14 | 13 | 18 | 11 | 13 | 17 | 12 |
chill °C | 15 | 13 | 16 | 25 | 21 | 23 | 27 | 18 | 19 | 23 | 14 | 12 | 18 | 11 | 13 | 17 | 12 |
Freezing level m | 3400 | 3900 | 3950 | 4050 | 4050 | 4150 | 4200 | 4100 | 4000 | 3950 | 3550 | 2800 | 3000 | 3200 | 3200 | 3200 | 3200 |
 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | 7:58 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Some drizzle, heaviest during Sun afternoon. Warm (max 29°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Some drizzle, heaviest during Thu morning. Warm (max 24°C on Wed afternoon, min 11°C on Thu night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.